What is CVE-2017-15265?

CVE-2017-15265 is a high-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2017-10-16.

How severe is CVE-2017-15265?

High severity. CVSS v3 base score is 7.0 out of 10.

Is CVE-2017-15265 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Linux Kernel

CVE-2017-15265

Race condition in the ALSA subsystem in the Linux kernel before 4.13.8 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted /dev/snd/seq ioctl calls, related to sound/core/seq/seq_clientmgr.c and sound/core/seq/seq_ports.c.

Vulnerability class: Race Condition

Published 2017-10-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.3th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

Public proof-of-concept exploits

wcventure/PERIOD

References

www.openwall.com/lists/oss-security/2017/10/11/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
www.securityfocus.com/bid/101288 (VDB Entry, Third Party Advisory, vdb-entry)
lists.debian.org/debian-lts-announce/2017/12/msg00004.html (mailing-list, Mailing List, Third Party Advisory)
access.redhat.com/errata/RHSA-2018:2390 (vendor-advisory, Third Party Advisory)
www.securitytracker.com/id/1039561 (VDB Entry, Third Party Advisory, vdb-entry)
access.redhat.com/errata/RHSA-2018:1062 (vendor-advisory, Third Party Advisory)
access.redhat.com/errata/RHSA-2018:3823 (vendor-advisory, Third Party Advisory)
access.redhat.com/errata/RHSA-2018:0676 (vendor-advisory, Third Party Advisory)
mailman.alsa-project.org/pipermail/alsa-devel/2017-October/126292.html (mailing-list, Patch, Mailing List, Third Party Advisory)
access.redhat.com/errata/RHSA-2018:1170 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2017-15265?: CVE-2017-15265 is a high-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2017-10-16.
How severe is CVE-2017-15265?: High severity. CVSS v3 base score is 7.0 out of 10.
Is CVE-2017-15265 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.